remove CGO_DEBUG

[jianzhangbjz]

Description of the change:
remove this CGO_DEBUG flag since it doesn't exist. Details in https://bugzilla.redhat.com/show_bug.cgi?id=1786217#c7

Motivation for the change:

Reviewer Checklist

• Implementation matches the proposed design, or proposal is updated to match implementation
• Sufficient unit test coverage
• Sufficient end-to-end test coverage
• Docs updated or added to /docs
• Commit messages sensible and descriptive

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[openshift-ci-robot]

Hi @jianzhangbjz. Thanks for your PR.

I'm waiting for a operator-framework member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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[jianzhangbjz]

/assign @ecordell

[ecordell]

closing in favor of #1219

[openshift-ci-robot]

@jianzhangbjz: PR needs rebase.

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